Malicious PDF — malware analysis report

Static analysis result for SHA-256 869a47e13489b602…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 22:09:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52480780a0f57c18f149ee9d5a3b9e60 SHA-1: 24dac208f59305262f174d0e25794c28719ed378 SHA-256: 869a47e13489b60209c98589ccfd8582bddf143b30f33a1244dfba427cfa5dc6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free in-game currency. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs suggests a workflow designed to lead the user to external, potentially malicious, content. No scripts were extracted, but the document's structure and embedded links point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-o-hack-roblox-trackid-sp-006-game-hack In PDF document text
    • http://croatia-flyfishing.com/files/roblox-hacks-compatible-with-vantage-computers_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-30000-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/roblox-alt-delete-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/generator-free-robux_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/hacks-for-roblox-backpacking-beta_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/robux-cheat_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/how-to-get-robux-free-sin-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://croatia-flyfishing.com/files/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/counter-blox-item-steal-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.croatia-flyfishing.com/files/free-robux-counter-for-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f24.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F24 22704 bytes
SHA-256: 6158ae03ada9b055518eb26209d87b0a49af7db0c2b63dc3047de30358c4b2f0
font_01_sfnt_off00006200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6200 19664 bytes
SHA-256: 984238b66801ada582082b6833bfb6d9194acb569a1798126f2138cd92348db9

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